(2008). Practical problems in the books of physics at the secondary. , 4(36), 78-91.
. "Practical problems in the books of physics at the secondary". , 4, 36, 2008, 78-91.
(2008). 'Practical problems in the books of physics at the secondary', , 4(36), pp. 78-91.
Practical problems in the books of physics at the secondary. , 2008; 4(36): 78-91.


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